你缺乏安全感。

You lack the sense of safety.

youdao

也有可能，你缺乏安全感，并且因为和自己意见相左的看法而感到威胁。

Maybe you \ \ \ 're insecure and feel threatened by views that contradict your own.

youdao

如果在线书店提供在线支付，要是你交付的软件缺乏适当的安全性或是经常变动用户界面，书店的顾客就会不满意。

If the online bookstore offers online payment, customers of the bookstore won't be happy if you deliver the software without security in place, or with an ever changing user interface.

youdao

If you feel exposed without a text book, you really have to have a textbook, John actually I'm going to reuse that word, John, at least suggest it, on the course website.

如果你觉得没有教科书就缺乏安全感的话，那你真的需要一个了，其实我应该重新使用这个词儿，至少是建议，你能在课程网站上找到。

麻省理工公开课 - 计算机科学及编程导论课程节选